Stereotype casting-box.



` No. 738,476'. PATBNTED SERT. s. 1903.. yc. s. PARTRIDGB.

STEREOTYPE CASTING BOX.

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UNITED vSTATES Patented September 8, 1903.

PATENT OEEICE.

CHARLES S. PARTRIDGE, OF CHICAGO, ILLINOIS, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO PARTRIDGE du ANDERSON COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

STEREOTYPE CASTING-BOX.

SPECIFICATION forming' part of Letters Patent No. 738,476, dated-September 8, 1903.

Application filed July l0, 1901. Serial No. 67,806. (No model.)

To all whom, t irl/ay concern:

Be it known that I, CHARLES S. PARTRIDGE, a citizen ot the United States, and a resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Stereotype Casting- Boxes, of which the following is a full, clear, and exact specification.

In stereotype casting-boxes of the ordinary type it is customary to lay the matrix on the mold and cover when closing the mold, or separate clamping devices are used which engage the matrix edges when the mold is closed. The means for securing the cover and mold together usually consist of clamps, bolts, or clips, which are adjusted by hand. As commonly mounted the boxes are trunnioned in frames which allow them a vertical tilting movement only, and this either raises them too high to be conveniently poured or else causes them to be too low for easy manipulation when adjusting the matrix or removing the casting.

This invention relates to improvements in stereotype casting-boxes, having means for clamping the matrix in position against the cover before closing the box, for tilting the box from a convenient operating` level when closed to a vertical position, and at the saine time lowering it, so that its mouth is brought into convenient pouring position, and at the same time automatically clamping the cover and the mold together.

The invention consists of the matters hereinafter set forth, and more particularly pointed out in the claims.

In the drawings, Figure l is aperspective view of a casting-box embodying the salient features of the invention, showin g the mold in a horizontal position and the cover raised ready 'for the insertion of the matrix. Fig. 2 is a plan view showing the box closed and in its horizontal position. Fig. 8 is a side elevation with the parts in the same position as shown in Fig. Fig. 4f is a perspective view showing the box closed and clamped and rolled back to an upright position ready for pouring. Fig. 5 isa fragmentary detailview ol' ar matrix-clamping strip and its actuating device.

Referring to the drawings, A represents the lbed or mold of a stereotype casting-box, which is provided with a cover B, pivotally secured thereto at Aone end. Said cover is provided with matrix-clamping strips C, which coinprise thin strips of metal movably positioned on its casting-face along the side edges and are secured on the inner ends of longitudinally-reciprocating pins c, which slide in suitable guideapertures in the cover B. These pins are connected at their outer ends by the usual eccentric-straps c, keyed to the eccentric portions of parallel cam-sha1" ts E, that are rotatively secured on the outer face of the` cover. Said shafts E are operatively connected to rock-arms c, the forwardmost one of which is extended and formed into a handle e', and these arms are connected to ity by abar F, the said parts being so disposed and arranged that a slight movement of said handle throws the clampingstrips C toward or from the face of the cover I3. Consequently a matrix laid on the cover B, with its margins or side edges inserted between the clampingstrips C and the face of the cover B, may be pressed closely against the cover B and held firmly in position by simply manipulating the clamping-handle c. Said cover B, in addition to being hinged to the mold A, is provided on either side with guide-plates G,which are adjustably secured to the outer sides of the cover and are adapted to guide said cover B to its proper relative position on the mold when the box is closed. The lower end of each of said guide-plates is provided with an outwardly-projecting clamping-lug g1, which is vertically adjusted by means of set-screws g', tapped through plates G and engaging the back of the cover B. Clamping-dogs II are pivotally secured to the sides of the mold A, which have their upper ends hooked to engage the lugs g and their lower or outer ends pivotally connected to links I. These links form a part of a lever connection, hereinafter more fully described, which acts to throw the dogs into engagement with the lugs g as the box is turned to its upright position. The box as IOO furnished with gear-teeth which are adapted to engage and roll on horizontal parallel racks K, formed in the upper faces of the supporting-frame P. Said box is preferably secured to the quadrant-frames so that its center of length coincides with the axial centers of the quadrants. Vhen the box is horizontal, the quadrants are resting on the front portions of the racks. It thus follows that by rolling the quadrants along their racks toward the rear end the box is turned from the horizontal position, as shown in Figs. 1 and 2, back to the vertical position, (shown in Fig. 4,) while its upper or pouring end is raised for about half the length lof the box instead of its full length. In order to aidthis movement, a counterbalance-weight L is secured to the outer ends of parallel levers L', which are pivoted to the main frame and have their inner ends connected by links M to the cover B of the box at points slightly offset from its center of length. Owing to this method of connection the weight L counterbalances the box when the latter is being rolled to its upright position and also assists in raising the cover when the latter is turned back from the mold, and owing to its excess of weight over that of the cover retains the latter in its upright position.

Referring again to the clamping-dogs II and their links I, it will be noticed that the inner ends of each pair of the latter are articulated to an arm N, pivotally connected at its upper or inner end to the radial center of the quadrant J, and is joined at its lower outer end by a link 0 to the main or stationary rackframe P. Said links and arms are so disposed and arranged that when the box is in its horizontal position the clamps or dogs H are thrown back from engagement with the lugs g of the plates G, as clearly shown in Fi g. 3. yOn rolling the box backward on its quadrants to the vertical position shown in Fig. 4 the arms N, being connected at their upper ends with the quadrant at its axial or radial center, are caused to move backward with the quadrant as it bodily rolls upon the rack portion K of the stationary bed or frame; but as the arms N are connected at their outer ends with the links O, which in turn are pivoted to the vstationary frame, the arms are also caused to rock vabout their fulcrum at the radial center of the quadrant, and this rocking movement is sufficient to move the dogs I-I through the links I so far forward as to engage with the hooks g, thereby firmly clamping themold and cover together ready for casting. As a convenient means of limiting the forward rolling of the quadrants when the box is turned to its horizontal position, a pedestal Q is formed on the rack-frame P near one end of one of the horizontal racks K in alinement therewith, which acts as a stop for the quadrant. A locking lever or latch S is suitably pivoted to the upper end of said pedestal and is provided at its inner end with a notch in its lower edge, which is adapted to by this form of construction.

thereby being unclamped. The cover is then raised to a position shown in Fig. l and is held there by the action of the counterbalance L. The clamping-strips C are thrown back by the clamping-handle e from the face of the cover, so as to allow the insertion of the matrix margins under the clampingstrips where the matrix is secured by manipulation of the clamping-handle e. The box is then closed by turning down the cover Band is then rolled back on its quadrants by the operator to the position shown in Fig. et, aided by the counterbalance L. This movement throws the clamping-dogs into engagement with the guide-plate lugs g of the cover, thereby tightly closing the box ready for casting without any further attention or adjustment.

Several important advantages are obtained The matrix is brought into register and clamped in position on the cover by movement of a single handle and is so secured that the box maybe opened for inspection without disturbing it. The counterbalanced cover is easily and quickly manipulated. The box itself is readily rolled into its pouring position, and this motion securely clamps or closes the mold, while merely turning the box back to the horizontal unclamps the cover, thereby avoiding the tedious releasing of separate clamps or dogs. A single counterbalance acts both for the cover and the box. The box, with its appurtenances, which is of considerable weight, has a rolling contact on the comparatively broad bearing-surface of the quadrant gears and racks. This gives a strength and rigidity greatly in excess of pivotal bearings, while a minimum of friction allows easy manipulation of the balanced parts. Furthermore, the casting-box is held at a convenient heightwhen level for removing the cast plate or for inserting the matrix. Then it is rotated to its vertical position, its upper end is in a convenient position for casting. The parts supporting the box are so propor tioned, preferably, that the peculiar cycloidal IOO IIO

movement of the box back and upward is A counterbalancing means arranged to assist in ciecting both the turning and the longitudinal movements of the casting-box, substantially as set forth.

2. In a stereotype casting apparatus, the combination of a supporting-frame, a mold arranged to be turned from a horizontal to an upright position and also to be moved in the frame longitudinally as a Whole, acover for the mold hinged thereto, and means for eounterbalancin g the cover when raised from the mold and also arranged to assist in effecting both the turning and the longitudinal movements of the mold, substantially as set forth. I

3. A stereotype casting-box, comprising a main frame, a mold capable of longitudinal movement in said frame and also free to turn therein from a horizontal to an upright position, a cover for said mold, and means automatically clamping said mold .and cover when said mold is in a pouring position, and releasing said cover When said mold is not in a pouring position.

4. A stereotype casting-box, comprising a main frame, a mold capable of longitudinal movement in said frame and also free to turn therein from a horizontal to an upright position, a cover for said mold, means automatically clamping said mold and cover When said mold is in a pouring position and releasing said cover When said mold is not in a pouring position and means counterbalancin g said mold in its various positions in said frame.

5. A stereotype casting-box, comprising a main frame, a mold capable of longitudinal movement in said frame and also free to turn therein from a horizontal to an upright position, a cover for said mold, means automatically clamping said mold and cover when said mold is in a pouring position and releasing said cover When said 4mold is not in a pouring position, means counterhalancing said mold in its various positions in said frame, and also said cover when raised from said mold.

G. A stereotype casting-hex, comprising a.

main frame a mold capable of a tilting movement and reciprocal horizontal movement in said frame, a cover for said mold, and means counterbalancing said mold in its various positions in said frame and also said cover when raised from the mold.

7. A stereotype casting-box, comprising a main frame, a mold capable of a simultaneous tilting movement and a horizontal, reciprocal movement in said frame, a cover for the mold and means controlled by the said movements of the mold for automatically clamping said cover and mold when said mold is in a pouring position and releasing said cover When said mold is not in a pouring position.

8. A stereotype casting-box, comprising a main frame, a mold capable of a simultaneous tilting movement and a horizontal, reciprocal movement in said frame, a cover for the mold, means controlledbythe said movements of the mold for automatically clamping said cover and mold when said mold is in a pouring position and releasing said cover when said mold isn ot in a pouring position and means counterbalancing said mold in its various positions in said frame.

0. A stereotype casting-box, comprising a main frame, a mold capable of a tilting movement and a horizontal, reciprocal movement in said frame, a cover for the mold, means automatically clamping said cover and mold when said mold is in a pouring position and releasing said cover When said mold is not in a pouring position means counterbalancing said .mold in its various positions in said frame and also said cover when raised from said mold.

10. A stereotype casting-box, eomprisinga mold, a cover therefor, a main frame, parallel horizontal racks thereon, quadrant-frames secured to the mold sides With gear-cut peripheries having rolling engagement on the racks,

a counterbalance-Weight for the mold, and lever connections between said mold main frame and Weight.

11. A stereotype casting-box, comprisinga mold, a cover therefor, a main frame, parallel horizontal racks thereon, quadrant-frames secured to the mold With gear-cut peripheries having rolling engagement on said racks, a

-counterbalance Weight for the mold, and

levers secured to said Weight at their outer ends, pivoted on said main frame, and con-v nected at their inner ends by links to said mold.

' 12. A stereotypev casting-box, comprising a main frame, a mold having vertical angular motion therein, a cover pivotally secured to said mold, a Weight and lever connections between said Weight, main frame and cover, whereby said Weight counterbalances said cover when raised from said mold, and said mold Whenit is tiltedl in said frame.

13. A stereotype casting-box, comprising a mold, a cover therefor, a main frame, means supporting said mold, having rolling engagement With said frame, and means counterbalancing the cover when it is raised 'from the mold, and said mold when in its various positions in said main frame.

14. A stereotype casting-box, comprising a mold, a cover pivotally secured thereto, a main frame, quadrant-frames secured 'to said mold having rolling contact on said main frame, aweight and lever connectionsbetween said Weight, main frame and cover, whereby said Weight counterbalances said cover When raised from said mold, and also said mold When it is rolled on said frame.

15. A stereotype casting-box, comprising a main frame, a mold having angular movement therein, a cover for the mold, clamping-dogs pivoted en the mold, links I, I, connected with the clamping-dogs, a pivoted arm N to which the links I are both connected, and a IIS link O connecting the arm N with the main I frame, the said parts being arranged to throw the clamping-dogs into engagement with the cover when the mold is upright, and to disengage them from the cover when the mold is horizontal, substantially as set forth.

1G. A stereotype casting-box, comprising a main frame, a mold having counterbalanced rolling connections with said frame, a cover for said mold, and means on said mold operatively connected to said main frame, clamping said cover to said mold when the mold is vertical, and releasing said cover when the mold is horizontal.

17. A stereotype casting-box, comprising a main frame, a mold having counterbalanced rolling connections with said main frame, a

' cover for said mold, clamping-dogs pivoted to said mold, and lever connections between said dogs andthe main frame adapted to throw said dogs into engagement with said cover when the mold is upright and to release said dogs from said cover when the mold is hori- Izontal 18. A stereotype casting-box comprising a mold, a cover therefor,.a main frame, means supporting said mold having rolling engagement with said main frame, and means automatically clamping said cover to said mold when said mold is vertical, and releasing` it when said mold is horizontal.

19.` A stereotype casting-box comprising a mold, a cover therefor, a main frame, means supporting said mold having rolling engagement with said main frame, and means operatively connected to said mold and frame automatically clamping said cover to said mold when said mold is vertical, and releasing it when said mold is horizontal.

20. A stereotype casting-box, comprising a main frame, a mold, a cover therefor, means supporting said mold, having rolling engagement with said main frame, and clampingdogs on said mold operatively connected to said main frame, automatically clamping said cover to said mold when the latter is vertical and releasing the cover when the mold is horizontal.

2l. A stereotype casting-box, comprising a main frame, a mold, a cover pivotally secured thereto,quadrant-frames secured to said mold having rolling engagement with said main frame, a counterbalance-weight, lever connections between said cover, and weight, whereby said weight counterbalances said cover when raised from said mold and said mold when rolled on said frame, clampingdogs pivoted to said mold, and lever connections between said dogs and said main frame, adapted to throw said dogs into engagement with said cover when the mold is upright and to release said dogs from said cover when the mold is horizontal. s

22. A stereotype casting-box, comprising a mold, a cover therefor,matrix-clamping strips on the side margins of the mold-face of the cover, cam-shafts rotatively secured on the cover operatively connected to said clampingstrips, a rock-arm on each shaft, a bar operatively connecting said rock-arms and a handle on one of said rock-arms.

23. A stereotype casting-box, comprising a main frame, a mold having counterbalance rolling connection thereon, a cover on the mold, matrix-clamping strips on the side margins of the mold-face of the cover, and means for moving said strips laterally to and from -said cover.

24. A stereotype casting-box comprising a main frame, a mold having rolling connections thereon, a cover for said mold, means actin g both to counterbalance said cover when raised from said mold, and to counterbalance said mold when rolled in said frame, means for clamping a matrix to said cover, and means automatically clamping said cover to said mold when in its vertical position and releasing said cover from said mold when in its horizontal position.

25. A stereotype casting-box comprising a main frame, a mold, a cover, means supporting said mold having rolling engagement with said main frame, means automatically clamping said cover on said mold when the latter is vertical, and releasing said cover when the mold is horizontal and means for clamping a matrix to said cover.

CHARLES S. PARTRIDGE.

lVitnesses:

M. FRIEL, FRANK D. THoMAsoN. 

